Riffat Tanveer, Asad Khan, Amina Nasreen.
Role of carotid doppler ultrasound in detecting the carotid artery disease resulting in stroke after CABG surgery.
Pak Heart J Jan ;51(3):218-23.

Objective: To determine the role of Carotid doppler ultrasound in detecting the carotid artery disease resulting in stroke after coronary artery bypass graft (CABG) surgery in our population. Methodology: We carried out a cross-sectional study at Department of Cardiac Surgery, Civil Hospital Karachi from 1st September 2015 to 31st January 2017.Data was collected for risk factors for stroke. Carotid doppler scanning was done in all patients undergoing CABG surgery. Post operative development of stroke was noted. Results: Total number of patients was 120 and the age range was 35-60 years.The risk factors for stroke (hypertension, diabetes mellitus and smoking) were present in 104 (86.7%) patients. Of the 4 patients with significant (50%-69%)unilateral carotid artery stenosis 2 patients developed stroke and the patient with bilateral significant stenosis also developed stroke. In patients with significant(50-69%) unilateral carotid artery stenosis, out of the 3 patients who had risk factors for stroke one patient developed stroke post-operatively, while one patient in whom the risk factors were not present also developed stroke post-operatively. The patient with significant (50-69%) bilateral carotid artery stenosis who had risk factors for stroke also developed stroke Conclusion: Carotid Doppler Ultrasound screening is an effective tool in detecting the carotid artery disease that may result in stroke after CABG.

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